I've installed my wideband O2 "gauge" and seeing some potentially bad behavior that I don't know enough to know where to start. I tried to capture it in the video below.
The car generally runs good and throttle response feels pretty good. It is much better since I changed the vacuum secondary screw to come in earlier.
Engine is mildly modified with unknown compression pop-up pistons, 4V open chamber heads, Blue Thunder intake, big bore stainless headers.
Carb is a Quick Fuel HR-780-VS. I would be amazed if it isn't exactly as it was when it came out of the box as far as jetting.
I get 15-16 inches of vacuum at idle.
Hot idle is a bit fat at 12.6 or so.
Thanks in advance and Happy New Year!